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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/db/index/column_key_generator.h"
#include "mongo/db/index/multikey_paths.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/storage/key_string.h"
#include "mongo/util/auto_clear_ptr.h"
namespace mongo {
/**
* Execution context for recycling and reusing temporary objects within the lifetime of a database
* operation. Users of any members should never leave any state behind.
*/
class StorageExecutionContext {
public:
static const OperationContext::Decoration<StorageExecutionContext> get;
StorageExecutionContext();
// No copy and no move
StorageExecutionContext(const StorageExecutionContext&) = delete;
StorageExecutionContext(StorageExecutionContext&&) = delete;
StorageExecutionContext& operator=(const StorageExecutionContext&) = delete;
StorageExecutionContext& operator=(StorageExecutionContext&&) = delete;
AutoClearPtr<KeyStringSet> keys() {
return makeAutoClearPtr(&_keys);
}
AutoClearPtr<KeyStringSet> multikeyMetadataKeys() {
return makeAutoClearPtr(&_multikeyMetadataKeys);
}
AutoClearPtr<MultikeyPaths> multikeyPaths() {
return makeAutoClearPtr(&_multikeyPaths);
}
AutoClearPtr<std::vector<column_keygen::CellPatch>> columnChanges() {
return makeAutoClearPtr(&_columnChanges);
}
private:
KeyStringSet _keys;
KeyStringSet _multikeyMetadataKeys;
MultikeyPaths _multikeyPaths;
std::vector<column_keygen::CellPatch> _columnChanges;
};
} // namespace mongo
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